Meaning & Definition of Spark in English

1. A momentary flash of light

2. Merriment expressed by a brightness or gleam or animation of countenance

• "He had a sparkle in his eye"

• "There's a perpetual twinkle in his eyes"

3. Electrical conduction through a gas in an applied electric field

4. A small but noticeable trace of some quality that might become stronger

• "A spark of interest"

• "A spark of decency"

5. Scottish writer of satirical novels (born in 1918)

6. A small fragment of a burning substance thrown out by burning material or by friction

1. Put in motion or move to act

• "Trigger a reaction"

• "Actuate the circuits"

2. Emit or produce sparks

• "A high tension wire, brought down by a storm, can continue to spark"